Airtac GFR Filter Regulator GFR400C15AC1WK
The AirTAC GFR Filter Regulator GFR400C15AC1WK is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR400C15AC1WK
GFR is AirTAC's filter regulator family: filtration and pressure regulation combined in one body, with a drain bowl and no lubricator. This GFR400C15AC1WK is the 400 size with a 1/2 in PT port (PT is the standard thread; G and NPT are catalogue options), an automatic drain, an external round pressure gauge scaled in MPa, the W code for the 5 um filter element, and the K code for a fitted reverse/check valve that passes flow in one direction and blocks reverse flow through the unit. With the automatic drain, the setting range is 0.15-0.9 MPa (20-130 psi); maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part, rated -5 to 70 C (non-freezing), with the 400 size bowl in polycarbonate (PC). The G-series runs from size 200 to 600, with automatic, manual or differential-pressure drains, 40 um standard or 5 um (W) elements, embedded square or external round gauges, and the check valve as an option. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
Airtac GFR Filter Regulator GFR400C15AC1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15AC1WK |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: Airtac GFR Filter Regulator GFR400C15AC1WK
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR400C15AC1WK Is Used
Pneumatic nutrunner station on an engine line
Feeds pneumatic nutrunner stations on an engine assembly line, where the 5 um element protects the tools and the check valve blocks reverse flow toward the supply.
Instrument air takeoff for a control panel
Provides filtered, regulated air to panel-mounted pneumatic instruments in a process plant, with the fitted check valve preventing backflow toward the header.
Truck workshop brake test bench
Supplies the bench used to check air brake components in a commercial truck workshop, with the round MPa gauge giving the technician a visible setpoint.
Is the Airtac GFR Filter Regulator GFR400C15AC1WK the Right Unit?
Size by air demand: the 400 frame with its 1/2 in port sits between the 300 (3/8 in) and 600 (3/4 in and 1 in) steps. This version combines two decode choices: W for the 5 um element (finer than the 40 um standard grade) and K for the fitted reverse/check valve - the plain variants GFR400C15AC1W and GFR400C15AC1 drop each feature separately. The drain is automatic, with manual and differential-pressure drains available on the series. The gauge is the external round type in MPa; square gauges and psi or bar scales are options. PT is the standard thread, with G (BSPP) and NPT orderable as catalogue options, and a mounting bracket is included as standard (J variants omit it). Flow is published as curves rather than a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR400C15AC1WK FAQ
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a rating on the page. Send us your line pressure and demand and we will confirm the flow from the datasheet on request before you order.
GFR combines filtration and regulation only; it does not lubricate. Where downstream tools or cylinders need an oil mist, pair this unit with a GL lubricator or choose the GFC two-unit set, which adds a lubricator to the same frame.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C15AC1WK
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.